Insertable ventilator for double hung window frames



Sept 19, w R. KUBATZKY INSERTABLE VENTILATOR FOR DOUBLE HUNG WINDOWFRAMES Filed Feb. 14, 1947 3 Sheets-Sheet 1 FIG. 1. 20

INVENTOR.

ATTORNEYS.

W. R. KUBATZKY Sgpt. 19, 1950 INSERTABLE VENTILATOR FOR DOUBLE HUNGWINDOW FRAMES 3 Sheets-Sheet 2 Filed Feb. 14, 1947 FIG. 3.

. INVENTORX. Wundruw 1 Ku'bal'zk ATTORNEYS.

Sept. 19, 1950 w. R. KUBATZKY INSERTABLE VENTILATOR FOR DOUBLE HUNGWINDOW FRAMES 3 Sheets-Sheet 3 Filed Feb. 14, 1947 FIG.

FIG. 5.

FIG. 4.

INVENTOR.

ATTORNEYS,

Patented Sept. 19, 1950 INSERTABLE VENTILATOR FOR DOUBLE HUNG WINDOWFRAMES Woodrow R. Kubatzky; St. Louis, Mo., assignor to Otto Kubatzky,St. Louis, Mo.

Application February 14, 1947, Serial No. 728,578

3 Claims. (01. 98-99.7)

The present invention relates to ventilators for use with windows and isparticularly well adapted for use with double hung window frames.

Various devices have been provided for use at windows, to permit ingressand egress of air to and from rooms. Some of these are affixed to thearchitraves or stop beads of the windows. These types of ventilatorsrequire considerable skill, if they are to have neat appearance wheninstalled. It is often desirable to remove the ventilators during fairseasons, such as for the late spring, summer and early fall, and thesetypes of ventilators, when removed, leave the frames marred, such asexposed holes made by screws, nails or other fastening devices, andparts may stick to the paint or other finish leaving such unsightly whenthe ventilator parts are pried therefrom. It is frequently found, uponremoval of such types of ventilators that the decorative coatings of thewindow frames, which were .con-

cealed by parts of the ventilator, are of a different color than theremainder of the coatings, due to fading, so that the entire frames mustbe redecorated, or the unsightly contrast of colors left to view.

Another type of ventilator in common use is that which is telescopic oradjustable lengthwise, to suit various widths of windows, between thepulley stiles, to fit beneath the lower sash of a double hung window,and rest upon the window sill. While such type may be readily removedand is not apt to damage woodwork of the decorative finish, it may bereadily removed by unauthorized persons from the outside 'of thebuilding, and usually is not symmetrical in appearance so that itdetracts from the architectural effect. Also, in recent years, it hasbeen found desirable to provide ventilators using glass or othertransparencies as deflecting shields for incoming air currents, so as tonot shut off considerable light from the outside, and these telescopictypes of ventilators have considerable opaque areas exposed to view atthe adjustable zones.

The principal object of the present invention is to provide a ventilatorfor window frames which may be easily and quickly placed, withoutlikelihood f damaging the window construction or the finish thereof,since it fits between the pulley stiles and between the sash and sill;and which cannot be collapsed or diminished in over all length, so thatif the sash is locked, either to the casing or to the upper sash afterthe ventilator has been placed, the latter cannot be readily removedwithout breakages unless the locked sash is first released.

, grade, one and three quarters inches.

The invention contemplates the provision of a rigid rectangular frame,supporting a transparent or translucent deflecting shield which ma beheld in a closed position with respect to the frame, to prevent theingress or egress of air, or adjusted to various open positions, thisframe being of a length almost as wide as the window opening so as topermit of entry of considerable light into the building; and rigidfiller pieces which may be slid into place, from above to occupysubstantially the entire space between the rigid ventilator frame andthe pulley stiles and to fit snugly between beads of the window casing.Thus a ventilator having symmetrical appearance and relatively smallopaque areas at the ends of the frame, is provided, which cannot bereadily removed without withdrawing the filler pieces verticall 'frombetween the main frame and window casing.

It is common practice to somewhat standardize double hung window frames,so that the dimensions of the window openings, in width, vary as todifferent sizes, by one inch or two inches or other unit of measurement.By way of example for some windows the sash may have a width of two feetand two inches, the next size, two feet and four inches, the next,'twofeet and six inches, and so on. For comparatively inexpensive windowconstruction the sash may have a thickness of one and three eighthsinches and for better The present invention makes possible the stockingOf a comparatively few sizes of ventilator frames and a variety of sizesand shapes of filler pieces to meet the average demands of persons in alocality seeking ventilators without resorting to unsightly,unsymmetrical assemblies or patchwork when installing.

Another object of the invention is to provide window ventilators of theinsertable type which when installed are comparatively weathertightwhen'the deflecting shields are closed, so they may be used in coldlocalities and those subjected to driving rain or snow storms withoutdanger of ingress of moisture or air when ventilation at the window isnot desired.

A further object of the invention is to provide ventilators which willfit neatly with respect to the many designs of lower sash rails, and thesills and stools of window frames, so that the assembly will have goodappearance and conceal any rough or uneven edges of the rail and stool.

Other objects and advantages of the invention will appear .in thefollowing detailed description of the preferred embodiment of my invenofsill portion 23. common practice in building construction, but it ispointed out ,that'it .isto the stop beads I1 or "the architraveii!'thatsome of the window 'ven-- Fig. 4 is a fragmentary view in elevation.of'a

double hung window frame, with the lower sash raised and showing themanner in which afjfiller piece may be inserted between the frame of theventilator .and the pulley stile of the 1window frame and between theparting and stop beads thereof. 4 V

Fig. 5 is a view similar to Fig. 4, but showing "the filler piece inplace,-. thenlower sash resting upon the ventilator;.and the upper andlower sashes locked togetherrso that the ventilator cannot be removedfromtheoutside of the window. Fig. '6 is a fragmentary, detail view inperspective, showing a portion of the ventilator frame resting upon thesill and stool of the window frame.

Fig. 7 is a detailview in perspective of one of wthefillerpieces,.ilookingatoward the faces there- ;of adapted forengagement .with the window =frame-pulley.stile, a portion beingbrokenawayto show a preferred detail thereof.

Fig. 8 is a view:- similar to Fig. 7, but looking to- :ward the faceadapted for engagement-with the ventilator'fram'ej Fig. 9 is a viewshowing for comparison two of such filler pieces in plan,for'selectiveuse according to the distance between therpulley stiels of-;the particular window frame iii-which the-ventilator is tobeinstalledgthis view showing byway ..a0f example,'the fillerpieces"forawindow having ,.sash.of:1% inchesthickness.

FigrlO is a .view similar-to'Fi-g. 9, but showing suitable filler piecesfora iwindo w' having a sash of 1 inches in thickness."

The improved ventilatoris-shown applied to a double hung window frame ofthe well known type comprising a sill H, pulley stiles'lZ and-l3,

from the confronting ifaces M and 50f which project the parting beadsWand-stop beads I1, and lower and upper sashes Hi and I9 respectively.Theframe isshown as having an architrave 20, outside. casing .Zl andscreen-'22 disposed upon the .sill and'engaging-the trim. The

sill II is shown as comprisingamain body portion 2-3, the-upper face .24of:which slants downward toward the outside of the building, from .astool'25,;having a top face 26 andan outer-side faceZ'l in angularrelation to each other.

in Figs. 4 and 5. The bottom:rail 28 has its lower surface beveleddownwardlyand outwardly, as

at 32, to conform to-the pitch of the upper face .All of these .detailsdisclose tilators now in common use are attached as herefiinbeforedisclosed; and that it "is the margin of the stool portion- 25-at thejuncture of the faces ,26 and Z'L-and the margin-at the juncture betweenthe bevelr32. and inner;face*33 of the bottom:

The lower sash includes a bottom rail 28 parting rail "29 and stilestllandthe'upper sash is also of ordinary construction, including a stile.31, shown 4 rail 28 that are frequently found to be uneven or rough,due to warping or wear and tear in some buildings. The thickness of thesash is usually standardized to the dimensions'of 1% and 1% inches andhence the pairs of beads 16 and H are spaced apart rather accurately, toslidably engage the upright margins of the sash according to thethickness thereof;

The ventilator preferably comprises mainly an elongated rectangularframe 36, filler or side'extension pieces 3?, to engage the pulley stilebetween the beadsll and i8, and a deflector shield .38, fordirec'tingincoming air primarily to portions of the room where such isdesired. In the i extruded metal sections suitably welded orotherexample shown; the deflector shield comprises a plate :39 andsegmental side wings 49, resembling somewhat those elements shownalsoshown a suitablelatch H for retaining the -plate 39 in a positionclosing the opening of frame 36, when such is desired, ,a knobarrangement 42 on the platediand a window lock 43, which may be usedto..lock ,thesashes {1,8 and 19 together .when the lower sash has beenraised to a pr-edetermined height. This lock may be of any suitablecharacter, such as is ,disclosed in Patent 1,580,611. grantedto .C.Kirkpatrick, April 13,

The frame .36 ispreferablymade of rolled or Wise secured together andpreferably comprises a lower rail-A5,.annpp6r railAB and stiles .47.

,The, rail 45, asshownmore in detail in Figs. 3 and 6 is preferablyshapedforsturdiness, to conceal any unevenness -or..r 0ugh-ness alongthe previously mentioned-margin of the stool 25, and to provide asupportfor the-plate 3.9 as wellas conduct any moisture contactingandflowing downwardly on the outsideof plate,39,to the pitched surfaceof $il1,po12tion"23,. Withthis in view the rail 4 5 preferablycomprisesan. upwardly opening horizontal trough '50-,paralleling the juncturebetween the faces 26-and21 of stool 25,,an inside yvall 5| of the troughpreferably abutting against the face 21,,a, first flange portion-52engaging upon the face 2 5 'andconnected to the wall 5|,

this flange portion '52.bei f preferably and mainly of inverted 'V-shapecrosssection '53. and terminating in a minor flange 154 forintimatecontact with the top surface of stool 25; .and a second fiange portion55joined to the other side of the trough '50 and includinga major sectionor web 56 having an up per;fa,ce15l inclining downwardl-y and outwardlyfrom the trough 50, this is preferably joined to the upper portion ofthe trough 50 by an integral flange 51* and it is also preferred toprovide a depending'flange 58 along the other margin of web 56 which mayengage, with intimate contact, the sill body 23, as shown in Fig.6.

The upper rail is-also preferably shapedfor sturdiness, to-conceal anyunevenness or roughness of the lower inner-margin of sash rail 28, andto provide an abutment for the uppermarginal portion of plate '39. Thisrail is shown more in detail in-Figs. 1 and 3 and preferably channelshapedin cross section, includinga web '59 and upstanding fianges'fi'lland BI, the web 59 having a depending angular fiangeBZ forming aninwardly opening channel 63 for receiving a packing strip'64 of spongerubber or the like, which is engaged by parts of the deflector shield 38as hereinafter described. The flange 60 preferably has its upper marginbent outwardly of the chan nel as shown at 95, the flange havingintimate contact with the inner face of sash rail 33. The depth of web59 is preferably made less than the thickness of the sash rail it is toengage so that the upper mar-gin of flange 6| will engage the undersideof the sash rail. For instance if the sash of minimum thickness forwhich the ventilator frame is intended, has a thickness of 1% inches,the Web '59 will be made of a depth less than 1% inches, thus assuring afit with not only a sash having this dimension but also with thosehaving greater thickness, such as one of 1 inches in thickness.

Referring now to the stiles 4'! they are each preferably similar to theupper rail Mi in that each is of channel cross section, comprising a web66 outer and inner flanges l9 and l l, respectively and an inwardlyextending angular flange 12 forming a channel 13 for receiving a packingstrip M to engage a portion of the deflector shield 38. The channels ofthe stiles 41 are each open at the top and endwise of the frame, and mayalso be open at the bottom thereof, for reception of the companionfiller or extension piece 31. The free margin of flange 19 may be formedwith a bead 15 to give good appearance and to provide a substantialabutment for resisting any attempt to pry the adjacent piece 3? from itsposition between the window beads l6 and I1.

The over-all length of frame 39 is at most, less than the distancebetween one of the stiles and the faces of the beads 16 and ll on theother stile whichconfronts same. In other words this length is less thanthe distance of stile 12 from the faces of beads I 9 and I! on stile I3which confront stile l2, and preferably the length of the frame 36 isless than the distance between the confronting faces of the pairs ofbeads l6 and I? on stiles l2 and I3, so that the frame may be placed inthe window opening by movement transversally of the plane of the window.This is essential where two filler or extension pieces 31 are used andthe over-all thickness of the frame 39 is greater than the space betweenthe beads l6 and H on their respective pulley stiles as shown in Fig. 2.

In Fig. 4 the frame 36 is shown in position in the window opening, withthe lower sash I8 raised high, and a hand is illustrated in the act ofplacing one of the filler or extension pieces 31, by sliding itdownwardly between the frame 36 and the pulley stile and between theparting and stop beads on such stile. The pieces 31 are preferably madeinterchangeable, so it suffices to describe merely one in detail. Eachpiece 3! is preferably made tube like, so as to provide a hollow 1B.This formation facilitates manufacture of the piece from rolled sheetmetal stock or extruded metal, renders the piece comparatively light inweight, but sturdy, and permits placing of one or more lugs or fingerholds IT in the hollow to facilitate placing and removal of the piecewith respect to the ventilator frame and window. The piece 31 iscoextensive with the stile 4'! of the ventilator frame with which itcooperates and comprises a first portion 18 substantially as thick asthe stile 41, and a second reduced portion 19 fitting in and slidablelongitudinally of the hollow of the channel shaped stile 41. The reducedportion 19 provides a shoulder 89 for engagement with the bead 15, asshown in Fig. 2 to limit the extent to which the reduced portion 19 maybe forced into the hollow of stile 41. Since the distance between thepulley stiles l2 and 13 of windows specified as of a given size may varyslightly, due to shrinkage of wood by way of example, it is preferred toprovide each piece 31 with a spring device 82 to compensate for suchinaccuracies and to make the assembly as weathertight as 1308-- sible.The spring device may be in the form of a strip of spring metal, such asWeatherstrip material, having a major central portion 83 archedtransversally and bordering minor flat flange portions 85, to engage theweb 69 of stile 4'1. spring device 82 as well as the lugs 11 may besecured to the reduced portion 19 by rivets 39 and it is preferred toprovide a lug 1! adjacent each end of the piece 31 so that, no matterwhether the piece is placed at the left end or right end of theventilator frame, there will be readily accessible one of these lugswhich may be engaged by the finger of a person when exerting an upwardpull on the piece 3'5 to remove it when disassembling the ventilatorwith respect to a window. The spring device 92 in reality forms a partof the filler or side extension piece 37 and functions only to preventthe adjacent parts of the ventilator from rattling, due to wind forces,etc., and to effectively close the space between the ends of theventilator frame and the window stiles.

The deflector plate 39 may be made of glass, sheet plastic material orthe like and is preferably transparent or translucent. It preferablyrests on a shock absorbing strip 88 of rubber or the like resting on thebottom of the rail trough 50 and on which it pivots as shownby full anddot and dash lines in Fig. 3. The side wings 49 are segmental in shapeand each comprises a main body portion 89, an outturned radial flange 99to engage the stile 4'! for limiting swinging movement of the wing inone direction, and a radial channel portion 9! for embracing the endportion of the plate 39. The channel portion 9| engages the packingstrip 14 and the top edge of plate 39 engages the packing strip 94 whenthe plate is swung to a position closing the ventilator frame opening.It will be noted that the vertex end of the side wing also rests on thestrip 88 and the arcuate upper edge portion 92 of the wing isaccommodated in a slit 93 in the angular flange 92, as shown in Fig. 2.This edge portion 92 may be provided with several pairs of spaceddimples 96 to yieldably hold the deflector shield 39 in various openpositions by frictional contact of the dimples with the packing strip69. The angle flanges 62 and 12 are preferably located well forwardtoward the flanges 69 and 19, respectively, so as to dispose the plate39 well toward the inside of the window opening and to permit use ofrather wide segmental side wings w'which may be accommodated in thewindow opening, without touching the screening of screen 22, when theventilator late 39 is in a closed position, as shown in full lines inFig. 3.

The knob arrangement may comprise an attaching channel 99 cemented orotherwise secured to the upper portion of plate 39, midway of its ends,and a knob 97 attached to a lip 98 integral with the channel 96. Thelatch ii may comprise a rotatable knob 99 attached to the flange 99,midway of its ends, the knob 99 carrying a finger 99 which may swing toengage the face of channel 96 when the shield is in a closed position.

It will be noted from Figs. 9 and 10 that filler pieces 3'1 may be madein various sizes so that a selection may be made among them for use'withthe particular ventilator frame to be used and according tocharacteristics of the particular window'in which the ventilator is tobe installed.

The

:sizes.

Theframes 36 may be made in stock sizesforuse infistock windows of twosomewhat closely related For instance a frame 36 may be used in a windowhaving an opening of two feet and two inches with filler pieces ofminimum size shown in the upper portion of Fig. 9 and where the sashis-l% inches thick, or with a filler piece of maximum size (each oneinch deeper) with a window havingan opening of two feet and four inches,the

1 maximum size filler piece being shown in the lower portion of Fig. 9.If the sash is 1% inches thick then a selection fromthe types of fillerpieces shown-inFig. 10 may be made, the upper piece in the view beingthe minimum size for the smaller window opening and the lower piece inthe view being for the larger size window opening.

' It will be noted from Fig. 4 that the ventilator may be easilyinstalled when the upper sash is raised high without danger ofdamagingthe window or meaning the finish thereof since the frame 36 maybe held in place with one hand and the filler pieces 31 slid downwardlybetween the ends of the frame and the window pulley stiles, using theother hand to accomplish such. The pieces "31. then close the spacesbetween the ends of the frame'36 and the stiles l2 and I3, and also fillthe spaces between the beads l6 and IT at the zone'of the ventilator,making it impossible to remove the ventilator without first withdrawingthe filler pieces in "an upward direction. As shown in Fig. 5, thewindow lock 43 may be thrown to ,prevent such removal of the ventilatorunless the sashes are'first released to permit raising of the lower sashsufiicient to gain access to and remove the filler pieces.

The assembled ventilator has very neat appearance as may be observedfrom Fig. 1 and the ventilator may bemade so as to admit as much if notmore light into a room than if omitted and the lower sash moved to aclosed position engag- .ing .the window sill. I

Iclaim: 1. In combination with a window of the type including a sill,spaced apart confronting stiles, a pair of spaced apart verticallydisposed beads on each of said stiles, said beads at the confrontingfaces of the stiles, and a sash vertically slidable between said stileswith its edge portions confined between said beads; a ventilatorinserted between the stiles, sill and lower portion of the sash,including an elongated rectangular frame of a length suflicientlysmaller than the distance between the pairs of beads on the stiles so asto permit the frame being initially placed in the window opening bymovement transversally of the plane of the window, said ventilator framehaving its end members of outwardly extending channel formationconfronting the channel formation presented by the beads on the windowframe stiles a vertical rectangular filler piece for each end of theventilator frame coextensive with the height thereof, said filler pieceseach inter- ;locked in the channel in the respective frame end 8 alongitudinal spring device along the edge of each filler piececonfronting the inner surface of and for seating engagement with thecorresponding channel of the ventilator stile'thruout its height.

2. In combination with a window of the type including a .sill, spacedapart confronting stiles, a pair of spaced apart vertically disposedbeads on each of said stiles, said beads at the confronting faces of thestiles, and a sash vertically slidable between said stiles with its edgeportions confined between said beads; a ventilator inserted between thestiles, sill and lower portion of the sash, including an elongatedrectangular frame of a length sufficiently smaller than the distancebetween the pairs of beads on the stiles so as to permit the frame beinginitially placed in the window opening by movement transversally of theplane of the window, said frame provided with stiles of channel shapecross section open at top and bottom and endwise of the frame, avertical filler piece of rectangular channel conformation for each endof the ventilator frame and coextensive with the height thereof, saidfiller pieces each of like formation and interchangeable one for theother at either end of the ventilator frame and each comprising a firstportion to span the distance between the beads of the window at itsrespective end of the ventilator frame so as to have no appreciablemovement transversally of the window, and a second portion fittingsnugly in the endwise opening of its respective stile of the ventilatorframe, so as to have no appreciable movement laterally in the plane ofthe ventilator frame, whereby the .filler pieces can be placed andremoved only by vertical movement of the frame and filler pieces, onewith respect to the other, when the sash is raised from engagement withthe ventilator, and a lug disposed in the hollow of each of theinterchangeable channel filler pieces adjacent each of the ends thereoffor selective engagement by the finger or thumb of a person, accordingto which lug is uppermost in the assembly, to facilitate placing andremoval of the filler piece with respect to the ventilator frame andwindow.

3. In combination with a window of the type including a sill, spacedapart confronting stiles, a pair of spaced apart verticallydisposedbeads 'on each of said stiles, said beads at the confrontingfaces of the stiles, and a sash vertically slidable between said stileswith its edge portions confined between said beads; a ventilatorinserted between the'stiles, sill and lower portion of the sash,including an elongated rectangular frame of a length sufficientlysmaller than the distance betwen the pairs of beads on the stiles 'so asto permit the frame being initially placed in the window opening bymovement transversally of the plane of the window, said frame providedwith stiles of channel shape cross section open at the top and bottom,and endwise of the frame, and a vertical filler piece of rectangularchannel conformation for each end of the ventilator frame andcoextensive with the height thereof,

said filler pieces each of like formation and interchangeable one forthe other at either end of the ventilator frame and each comprising afirst portion to span the distance between the beads of the window atits respective end of the ventilator frame so as to have no appreciablemovement transversally of the window, and a second portion fittingsnugly in the endwise opening of its respective stile of "the ventilatorframe, so as to have no appreciable movement laterally in the 9 plane ofthe ventilator frame, whereby the filler pieces can be placed andremoved only by vertical movement of the frame and filler pieces, onewith respect to the other, when the sash is raised from engagement withthe ventilator.

WOODROW P. KUBATZKY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Name Date Kidwell Apr. 12, 1904 Number NumberKubatzky June 13, 1944 V

